I get to do this often. Blind people need information, like everyone else.

You get to read the labels so the shopper knows prices and fabric compositions.

You get to scan around the store and describe the general layout then maybe suggest a plan of action, The shopper may then ignore you and grab the nearest brightly coloured thing and inspect that. That is OK, be patient, you get to do this all the time without help.

You should speak up if the thing the shopper has missed something obvious e.g. "Did you notice they are crotchless?" If they did that's fine too, if they didn't then it is up to them how they react to the info. Also pointing out special offers and small print on the special offers is helpful.

When trawling through the bargain rails you can pick out the items in their size and offer them to the shopper to see if anything is of interest.

Shopping environments are constructed for sighted people, you can bridge the gap by converting the visual to spoken descriptions.

Take the shoppers lead as to how much and what kind of information they want,

Just be friend and chat about the motivation for the shopping trip. Someone to impress or just out to feel good in fine clothing.

Be patient, very patient as some things will happen much more slowly than you are used to.

Be happy and find the joy in a shared endeavour from a new perspective.

In summary facilitate without directing, make sure it is fun for both.

Things you may forget are stuff like pointing out offers, reading price labels accurately and even sometimes things like how the fabric is washed or what it's made from if they are new to the item they are looking for.

Sexy undies are fairly differant to your bog standard undies and feeling the fabric is probably going to be a big part of it.

Try and differentiate your "you need to know this because you can't know it without me telling you" stuff and "I would tell any friend that bra is fugly, visually impaired or otherwise". Often they blur into one because not eveyone spots everything but do try not to wander off randomly like commonly happens when shopping (each person checking their own rack for example) unless it's suggested or you get sent off to go say find a differant size or such.

Small thing but: if she is the one shopping, make sure sales people know that they can talk to *her*. One thing I read/hear over and over again is how annoying it is for sales people to ask someone shopping with a blind/VI person "What do they need?" when the blind person is perfectly capable of answering questions on their own.

How easy going is this person? As long as it’s not my parents who has all sorts of opinions about things and likes other people to think them as well, sometimes shopping is fun, on occasion as long as it’s with a friend who describes well.I have this friend who describes everything immensely even walls and decor, and street christmas lights. NO detail sails by his attention. I like shopping with him because he actually describes things with no biase and he describes just about everything. Hey, joe, what’s this? He’ll describe it. A lot of time we’ll just walk around the shop and he’ll voluntarily describe something, so much I have good ideas of what things look like I actually want something. He does market research but I don’t doubt he’d be bad in sales. May be a little too nice though. Oh look at this over here, is a common phrase. And this is pretty neat over here. And look at this, they have these. I promise window browsing was never fun before I went shopping with him and it was an accident. It wasn’t like I asked. I decided to be agreeable and go shopping with him.

If she has more of a agenda I guess you do what she wants maybe read labels maybe you can still describe stuff.

I’m not really sure what the question is